Fault Messages And Faults; Decommissioning; Customer Service; Technical Data - Vaillant VR 91f Operating And Installation Instructions

3 For the competent person

3.7 Fault messages and faults

3.7.1 Fault messages
If a fault occurs in the heating installation,
will appear in the display together with a
fault message.
3.7.1.1 Troubleshooting measures
Troubleshooting faults (→ Appendix B.2)
Troubleshooting errors (→ Appendix B.3)

3.8 Decommissioning

3.8.1 Decommissioning the product
1. Decommission all components of the
heating installation, as described in
the installation instructions for the indi-
vidual components.
2. Take the remote control out of the unit
mounting bracket.
3. Remove the batteries.
4. Remove the cover on the unit mounting
bracket.
5. Unscrew the unit mounting bracket
from the wall.

3.9 Customer service

Customer service addresses can be found
in the installation instructions for the con-
troller.

3.10 Technical data

3.10.1 Remote control unit
Battery type
Transmission frequency
Transmission power
Range outdoors
Range indoors
Level of protection
Protection class
Maximum permitted ambient
temperature
Rel. room humidity
Height
Width
Depth
14
LR06
868 MHz
≤ 10 mW
≤ 100 m
≤ 25 m
IP 20
III
0 ... 60 ℃
35 ... 90 %
115 mm
147 mm
50 mm
Operating and installation instructions 0020253110_01